United States · 
Who invested in Opal Security?
Opal Security's investors include Greylock, Battery Ventures, BoxGroup and Cambium Capital. Greylock led its latest round.
202420252026
$22MSeries B$23MRound
United States · Series B startup
Who invested in Opal Security
2 rounds we have observed, with the 4 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 5 months ago
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Funding summaryUpdated 15 Nov 2026
$45Mraised across 2 rounds since 2023, from 2 sources
$22MSeries B$23MRound
- Latest round
- Round, $23MJul 2026
- Led by
- Greylock and Battery Ventures
- Investors
- 4 (2 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $22M Dec 2023
- Biggest round
- $23M Round · Jul 2026
- Between rounds
- 2.6 years from the last two
The rounds
- Jul 2026Round$23M1 new3 returning
Reported by Ventureburn
- Dec 2023
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Opal Security as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Opal Security
How much has Opal Security raised?
Opal Security has raised $45M across 2 rounds since 2023.
When did Opal Security last raise?
Opal Security's most recent round, $23M, was in Jul 2026, led by Greylock.
What was Opal Security's biggest round?
Its most recent round, $23M in Jul 2026, is also its largest on record.
Who backed Opal Security first?
Opal Security's first round on record, in Dec 2023, was backed by BoxGroup, Greylock and Battery Ventures.
What stage is Opal Security at?
Opal Security's latest named round is a Series B, in Dec 2023.
Where is Opal Security based?
Opal Security is based in the United States.
Who led Opal Security's rounds?
Greylock led the funding round in 2026.
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